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Fully developed turbulent channel (water) with a test section of height 27.5 mm, width of 305 mm, and a length of 871 mm. Controlled bubble injection is possible through porous plates that are supplied with pressurized air from an external air source. The maximum average speed of water within the channel is about 2 m\/s. Equipped for pressure drop measurements for drag reduction studies, direct bubble visualizations, and flow measurements using PIV.<\/span><\/p>\n<\/div>\n<\/div>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ min_height=”100vh” overflow-x=”hidden” overflow-y=”hidden” custom_css_main_element=”scroll-snap-align: start;||scroll-snap-stop: normal;” global_colors_info=”{}”][et_pb_row use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.16″ positioning=”absolute” position_origin_a=”bottom_center” z_index=”0″ width=”100%” max_width=”100%” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_line_height=”1em” background_color=”gcid-c32f3db7-275e-4ad9-b30b-6c481fd0a466″ width=”30%” custom_padding=”30%||||false|false” scroll_vertical_motion_enable=”on” global_colors_info=”{%22gcid-c32f3db7-275e-4ad9-b30b-6c481fd0a466%22:%91%22background_color%22%93}”][\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.16″ width=”60vw” max_width=”100%” custom_margin=”20vh||||false|false” custom_margin_tablet=”5vh||||false|false” custom_margin_phone=”5vh||||false|false” custom_margin_last_edited=”on|phone” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ scroll_horizontal_motion_enable=”on” scroll_horizontal_motion=”0|40|60|100|-3|0|-3″ scroll_fade_enable=”on” global_colors_info=”{}”][et_pb_image src=”https:\/\/mecheng.iisc.ac.in\/fpl\/fplnew\/wp-content\/uploads\/2025\/03\/Vortex-pair.jpg” title_text=”Vortex pair” force_fullwidth=”on” _builder_version=”4.27.4″ global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|2vw||2vw|false|true” custom_padding_tablet=”2vh|2vw||2vw|false|true” custom_padding_phone=”” custom_padding_last_edited=”on|desktop” scroll_horizontal_motion_enable=”on” scroll_horizontal_motion=”0|40|60|100|3|0|3″ scroll_fade_enable=”on” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ header_2_font=”Source Sans Pro|700|||||||” header_2_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ header_2_font_size=”2.75rem” header_2_font_size_tablet=”2.75rem” header_2_font_size_phone=”2.25rem” header_2_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22header_2_text_color%22,%22header_2_text_color%22%93}”]<\/p>\n
Vortex Pair Test Facility<\/h2>\n
[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ text_font=”Lora||||||||” text_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ text_font_size=”1.25rem” text_line_height=”1.8em” custom_margin=”2vw||2vw||true|false” text_font_size_tablet=”1.15rem” text_font_size_phone=”1.1rem” text_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22text_text_color%22,%22text_text_color%22%93}”]<\/p>\n
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A transient (starting) jet arrangement in a free surface glass water tank of dimensions 1 m (length) x 1 m (width) x 1.2 m (depth). The transient jet is generated from a computer-controlled piston-cylinder mechanism utilizing a servo motor combined with a lead screw to push the piston.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ background_color=”gcid-8011e88d-d334-4244-b163-1ed76d786667″ min_height=”100vh” overflow-x=”hidden” overflow-y=”hidden” custom_css_main_element=”scroll-snap-align: start;||scroll-snap-stop: normal;” global_colors_info=”{%22gcid-8011e88d-d334-4244-b163-1ed76d786667%22:%91%22background_color%22%93}”][et_pb_row use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.27.4″ positioning=”absolute” position_origin_a=”bottom_center” z_index=”0″ width=”100%” max_width=”100%” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_line_height=”1em” background_color=”gcid-c32f3db7-275e-4ad9-b30b-6c481fd0a466″ width=”30%” custom_padding=”30%||||false|false” scroll_vertical_motion_enable=”on” global_colors_info=”{%22gcid-c32f3db7-275e-4ad9-b30b-6c481fd0a466%22:%91%22background_color%22%93}”][\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.27.4″ width=”60vw” max_width=”100%” custom_margin=”20vh||||false|false” custom_margin_tablet=”5vh||||false|false” custom_margin_phone=”5vh||||false|false” custom_margin_last_edited=”on|phone” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ scroll_horizontal_motion_enable=”on” scroll_horizontal_motion=”0|40|60|100|-3|0|-3″ scroll_fade_enable=”on” global_colors_info=”{}”][et_pb_image src=”https:\/\/mecheng.iisc.ac.in\/fpl\/fplnew\/wp-content\/uploads\/2025\/03\/Drop-Test.jpg” title_text=”Drop Test” force_fullwidth=”on” _builder_version=”4.27.4″ locked=”off” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|2vw||2vw|false|true” custom_padding_tablet=”2vh|2vw||2vw|false|true” custom_padding_phone=”” custom_padding_last_edited=”on|desktop” scroll_horizontal_motion_enable=”on” scroll_horizontal_motion=”0|40|60|100|3|0|3″ scroll_fade_enable=”on” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ header_2_font=”Source Sans Pro|700|||||||” header_2_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ header_2_font_size=”2.75rem” header_2_font_size_tablet=”2.75rem” header_2_font_size_phone=”2.25rem” header_2_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22header_2_text_color%22,%22header_2_text_color%22%93}”]<\/p>\n
Low Pressure Drop Test Facility<\/h2>\n
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Used to study cavity formation during water-entry of bodies. The ability to reduce pressure helps to simulate lower cavitation numbers.<\/span><\/p>\n<\/div>\n<\/div>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ min_height=”100vh” overflow-x=”hidden” overflow-y=”hidden” custom_css_main_element=”scroll-snap-align: start;||scroll-snap-stop: normal;” global_colors_info=”{}”][et_pb_row use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.16″ positioning=”absolute” position_origin_a=”bottom_center” z_index=”0″ width=”100%” max_width=”100%” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_line_height=”1em” background_color=”gcid-c32f3db7-275e-4ad9-b30b-6c481fd0a466″ width=”30%” custom_padding=”30%||||false|false” scroll_vertical_motion_enable=”on” global_colors_info=”{%22gcid-c32f3db7-275e-4ad9-b30b-6c481fd0a466%22:%91%22background_color%22%93}”][\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.16″ width=”60vw” max_width=”100%” custom_margin=”20vh||||false|false” custom_margin_tablet=”5vh||||false|false” custom_margin_phone=”5vh||||false|false” custom_margin_last_edited=”on|phone” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ scroll_horizontal_motion_enable=”on” scroll_horizontal_motion=”0|40|60|100|-3|0|-3″ scroll_fade_enable=”on” global_colors_info=”{}”][et_pb_image src=”https:\/\/mecheng.iisc.ac.in\/fpl\/fplnew\/wp-content\/uploads\/2025\/03\/Low-speed-wind-tunnel.jpg” title_text=”Low speed wind tunnel” force_fullwidth=”on” _builder_version=”4.27.4″ global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|2vw||2vw|false|true” custom_padding_tablet=”2vh|2vw||2vw|false|true” custom_padding_phone=”” custom_padding_last_edited=”on|desktop” scroll_horizontal_motion_enable=”on” scroll_horizontal_motion=”0|40|60|100|3|0|3″ scroll_fade_enable=”on” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ header_2_font=”Source Sans Pro|700|||||||” header_2_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ header_2_font_size=”2.75rem” header_2_font_size_tablet=”2.75rem” header_2_font_size_phone=”2.25rem” header_2_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22header_2_text_color%22,%22header_2_text_color%22%93}”]<\/p>\n
Low Speed Wind Tunnel<\/h2>\n
[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ text_font=”Lora||||||||” text_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ text_font_size=”1.25rem” text_line_height=”1.8em” custom_margin=”2vw||2vw||true|false” text_font_size_tablet=”1.15rem” text_font_size_phone=”1.1rem” text_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22text_text_color%22,%22text_text_color%22%93}”]<\/p>\n
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Low-speed open circuit suction Wind-tunnel with a cross-section of 1m x 1m. Maximum speeds of about 25 m\/s.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ background_color=”gcid-8011e88d-d334-4244-b163-1ed76d786667″ min_height=”100vh” overflow-x=”hidden” overflow-y=”hidden” custom_css_main_element=”scroll-snap-align: start;||scroll-snap-stop: normal;” global_colors_info=”{%22gcid-8011e88d-d334-4244-b163-1ed76d786667%22:%91%22background_color%22%93}”][et_pb_row use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.27.4″ positioning=”absolute” position_origin_a=”bottom_center” z_index=”0″ width=”100%” max_width=”100%” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_line_height=”1em” background_color=”gcid-c32f3db7-275e-4ad9-b30b-6c481fd0a466″ width=”30%” custom_padding=”30%||||false|false” scroll_vertical_motion_enable=”on” global_colors_info=”{%22gcid-c32f3db7-275e-4ad9-b30b-6c481fd0a466%22:%91%22background_color%22%93}”][\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.27.4″ width=”60vw” max_width=”100%” custom_margin=”20vh||||false|false” custom_margin_tablet=”5vh||||false|false” custom_margin_phone=”5vh||||false|false” custom_margin_last_edited=”on|phone” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ scroll_horizontal_motion_enable=”on” scroll_horizontal_motion=”0|40|60|100|-3|0|-3″ scroll_fade_enable=”on” global_colors_info=”{}”][et_pb_image src=”https:\/\/mecheng.iisc.ac.in\/fpl\/fplnew\/wp-content\/uploads\/2025\/05\/Vertical-Tunnel.jpg” alt=”Vertical Tunnel, Flow Physics Lab IIsc” title_text=”Vertical Tunnel” force_fullwidth=”on” _builder_version=”4.27.4″ locked=”off” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|2vw||2vw|false|true” custom_padding_tablet=”2vh|2vw||2vw|false|true” custom_padding_phone=”” custom_padding_last_edited=”on|desktop” scroll_horizontal_motion_enable=”on” scroll_horizontal_motion=”0|40|60|100|3|0|3″ scroll_fade_enable=”on” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ header_2_font=”Source Sans Pro|700|||||||” header_2_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ header_2_font_size=”2.75rem” header_2_font_size_tablet=”2.75rem” header_2_font_size_phone=”2.25rem” header_2_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22header_2_text_color%22,%22header_2_text_color%22%93}”]<\/p>\n
Vertical Water Tunnel<\/h2>\n
[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ text_font=”Lora||||||||” text_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ text_font_size=”1.25rem” text_line_height=”1.8em” custom_margin=”2vw||2vw||true|false” text_font_size_tablet=”1.15rem” text_font_size_phone=”1.1rem” text_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22text_text_color%22,%22text_text_color%22%93}”]<\/p>\n\n\n
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Vortex Induced Vibration (VIV) setup in a vertical water tunnel (1000 mm \u00d7 410 mm \u00d7 280 mm) for studying fluid-structure interactions. A 38 mm diameter cylinder is mounted on low-damping air bearings to enable precise transverse vibration measurements. Operating at Reynolds numbers from 1,000 to 10,000, with an aspect ratio of 10 and a 13% blockage ratio, the setup supports research in VIV, wake interactions, and flow-induced energy harvesting.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ background_color=”gcid-bf2a3fc9-8ca4-4a56-85cc-2c287b1f1f9c” min_height=”50vh” overflow-x=”hidden” overflow-y=”hidden” custom_css_main_element=”scroll-snap-align: start;||scroll-snap-stop: normal;” global_colors_info=”{%22gcid-bf2a3fc9-8ca4-4a56-85cc-2c287b1f1f9c%22:%91%22background_color%22%93}”][et_pb_row use_custom_gutter=”on” gutter_width=”1″ _builder_version=”4.27.4″ global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22header_2_text_color%22%93}” header_2_font_size_tablet=”2.75rem” header_2_font_size_phone=”2.25rem” header_2_font_size_last_edited=”on|phone”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ scroll_horizontal_motion=”0|40|60|100|-3|0|-3″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ header_2_font=”Source Sans Pro|700|||||||” header_2_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ header_2_font_size=”4vw” header_2_font_size_tablet=”7vw” header_2_font_size_phone=”7vw” header_2_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22header_2_text_color%22%93}”]<\/p>\n
Instrumentations:<\/h2>\n
[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ text_font=”Lora||||||||” text_text_color=”gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986″ text_font_size=”1.25rem” text_line_height=”1.8em” custom_margin=”2vw||2vw||true|false” text_font_size_tablet=”1.15rem” text_font_size_phone=”1.1rem” text_font_size_last_edited=”on|phone” global_colors_info=”{%22gcid-ddfd5a08-11a0-4dad-af47-fef549cd5986%22:%91%22text_text_color%22,%22text_text_color%22%93}”]<\/p>\n
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To enable measurements in the above facilities, both conventional and laser-based instrumentation are used such as hot-wire anemometer system, pressure transducers, force balances, and lasers and cameras for visualization and Particle Image Velocimetry (PIV).<\/span><\/p>\n<\/div>\n<\/div>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"
Water Tunnel Test section of 0.26m x 0.45m with a length of 1m. Speeds ranging from 1 cm\/s to 30 cm\/s can be achieved within the test section. Equipped for force measurements on models and flow measurements using PIV. Supersonic Tunnel Blowdown supersonic tunnel with a test-section of 10 cm x 8 cm driven by […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"class_list":["post-250265","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mecheng.iisc.ac.in\/fpl\/wp-json\/wp\/v2\/pages\/250265","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mecheng.iisc.ac.in\/fpl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mecheng.iisc.ac.in\/fpl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mecheng.iisc.ac.in\/fpl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mecheng.iisc.ac.in\/fpl\/wp-json\/wp\/v2\/comments?post=250265"}],"version-history":[{"count":23,"href":"https:\/\/mecheng.iisc.ac.in\/fpl\/wp-json\/wp\/v2\/pages\/250265\/revisions"}],"predecessor-version":[{"id":250534,"href":"https:\/\/mecheng.iisc.ac.in\/fpl\/wp-json\/wp\/v2\/pages\/250265\/revisions\/250534"}],"wp:attachment":[{"href":"https:\/\/mecheng.iisc.ac.in\/fpl\/wp-json\/wp\/v2\/media?parent=250265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}