{"id":5047,"date":"2023-02-07T13:42:49","date_gmt":"2023-02-07T18:42:49","guid":{"rendered":"https:\/\/engineering.jhu.edu\/lefd\/?page_id=5047"},"modified":"2026-05-14T11:41:09","modified_gmt":"2026-05-14T15:41:09","slug":"turbomachine-results","status":"publish","type":"page","link":"https:\/\/engineering.jhu.edu\/lefd\/turbomachine-results\/","title":{"rendered":"Turbomachine &#8211; Results"},"content":{"rendered":"<h2 style=\"text-align: center;\">Additive manufactured ducted propeller (A6061, Tip gap: 2 mm)<\/h2>\n<h2>Objectives:<\/h2>\n<ul>\n<li>Visualize cavitation erosion on an AM propeller and the evolution of surface pitting over time.<\/li>\n<\/ul>\n<h2>Approach:<\/h2>\n<ul>\n<li>The propeller was continually operated in the established design conditions,\u00a0viz. Advance ratios\u00a0 J= 0.803, 0.85, 0.9 at cavitation number \u03c3= 10.<\/li>\n<li>Imaging was done at 15 kHz to detect incipient and observe developed cavitation in the tip region.<\/li>\n<li>Phantom v2640 high-speed camera was used for the same (1024 x 976 pixels).<\/li>\n<\/ul>\n<h2>Results:<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5927 aligncenter\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-300x169.png\" alt=\"\" width=\"801\" height=\"451\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-300x169.png 300w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-1024x576.png 1024w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-200x113.png 200w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-768x432.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-1536x864.png 1536w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-2048x1152.png 2048w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-150x84.png 150w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/Presentationaddtiveprop-320x180.png 320w\" sizes=\"auto, (max-width: 801px) 100vw, 801px\" \/><\/p>\n<h2 style=\"text-align: center;\">DUCTED PROPELLER (Acrylic, Tip gap: 2 mm)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5837 aligncenter\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul1-300x184.png\" alt=\"\" width=\"616\" height=\"378\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul1-300x184.png 300w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul1-1024x628.png 1024w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul1-200x123.png 200w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul1-768x471.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul1-150x92.png 150w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul1.png 1110w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/p>\n<h2 style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5843\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul2-300x184.png\" alt=\"\" width=\"641\" height=\"393\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul2-300x184.png 300w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul2-1024x628.png 1024w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul2-200x123.png 200w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul2-768x471.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul2-150x92.png 150w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul2.png 1147w\" sizes=\"auto, (max-width: 641px) 100vw, 641px\" \/><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5846 aligncenter\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul3-276x300.png\" alt=\"\" width=\"648\" height=\"704\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul3-276x300.png 276w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul3-184x200.png 184w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul3-138x150.png 138w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul3.png 705w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5849 aligncenter\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul4-251x300.png\" alt=\"\" width=\"626\" height=\"748\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul4-251x300.png 251w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul4-167x200.png 167w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul4-125x150.png 125w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul4.png 695w\" sizes=\"auto, (max-width: 626px) 100vw, 626px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5852 aligncenter\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul5-300x178.png\" alt=\"\" width=\"733\" height=\"435\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul5-300x178.png 300w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul5-1024x606.png 1024w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul5-200x118.png 200w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul5-768x455.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul5-150x89.png 150w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul5.png 1103w\" sizes=\"auto, (max-width: 733px) 100vw, 733px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5855\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul6-300x219.png\" alt=\"\" width=\"766\" height=\"559\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul6-300x219.png 300w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul6-1024x747.png 1024w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul6-200x146.png 200w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul6-768x560.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul6-150x109.png 150w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2026\/05\/propresul6.png 1091w\" sizes=\"auto, (max-width: 766px) 100vw, 766px\" \/><\/p>\n<h2 style=\"text-align: center;\">Previous Turbomachine results<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-4759 size-large\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/perf_comb-847x1024.png\" alt=\"\" width=\"847\" height=\"1024\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/perf_comb-847x1024.png 847w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/perf_comb-248x300.png 248w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/perf_comb-165x200.png 165w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/perf_comb-768x929.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/perf_comb-124x150.png 124w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/perf_comb.png 930w\" sizes=\"auto, (max-width: 847px) 100vw, 847px\" \/><\/p>\n<p style=\"text-align: center;\"><em>Effects of Axial Casing Grooves (ACGs) on the performance of axial compressor.<\/em><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4761 size-large aligncenter\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/eff_comb-916x1024.png\" alt=\"\" width=\"916\" height=\"1024\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/eff_comb-916x1024.png 916w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/eff_comb-268x300.png 268w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/eff_comb-179x200.png 179w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/eff_comb-768x859.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/eff_comb-134x150.png 134w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/eff_comb.png 1006w\" sizes=\"auto, (max-width: 916px) 100vw, 916px\" \/><\/p>\n<p style=\"text-align: center;\"><em>Effects of Axial Casing Grooves (ACGs) on the efficiency of axial compressor.<\/em><\/p>\n<h2 style=\"text-align: center;\">______________________________________________________________<\/h2>\n<h2 style=\"text-align: center;\">FLOW VISUALIZATION USING CAVITATION<\/h2>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4704 size-full aligncenter\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/bfv.png\" alt=\"\" width=\"949\" height=\"652\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/bfv.png 949w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/bfv-300x206.png 300w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/bfv-200x137.png 200w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/bfv-768x528.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/bfv-150x103.png 150w\" sizes=\"auto, (max-width: 949px) 100vw, 949px\" \/><\/p>\n<p style=\"text-align: center;\"><em>Formation of Tip Leakage Vortex (TLV) and Backflow Vortex (BFV) in axial compressor.<\/em><\/p>\n<h2 style=\"text-align: center;\">______________________________________________________________<\/h2>\n<h2 style=\"text-align: center;\">STEREOSCOPIC PARTICLE IMAGE VELOCIMETRY<\/h2>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4741 size-full\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/expt-set-up.png\" alt=\"\" width=\"880\" height=\"818\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/expt-set-up.png 880w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/expt-set-up-300x279.png 300w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/expt-set-up-200x186.png 200w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/expt-set-up-768x714.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/expt-set-up-150x139.png 150w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><i>Sketch of a typical SPIV setup. <\/i><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4706 size-full\" src=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/tlv-bfv-location.png\" alt=\"\" width=\"783\" height=\"637\" srcset=\"https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/tlv-bfv-location.png 783w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/tlv-bfv-location-300x244.png 300w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/tlv-bfv-location-200x163.png 200w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/tlv-bfv-location-768x625.png 768w, https:\/\/engineering.jhu.edu\/lefd\/wp-content\/uploads\/2021\/01\/tlv-bfv-location-150x122.png 150w\" sizes=\"auto, (max-width: 783px) 100vw, 783px\" \/><\/p>\n<p style=\"text-align: center;\"><i>Three-dimensional structure of the TLV<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Additive manufactured ducted propeller (A6061, Tip gap: 2 mm) Objectives: Visualize cavitation erosion on an AM propeller and the evolution of surface pitting over time. Approach: The propeller was continually operated in the established design conditions,\u00a0viz. Advance ratios\u00a0 J= 0.803, &hellip; <a href=\"https:\/\/engineering.jhu.edu\/lefd\/turbomachine-results\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":7627,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"class_list":["post-5047","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Turbomachine - Results - Laboratory for Experimental Fluid Dynamics<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/engineering.jhu.edu\/lefd\/turbomachine-results\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Turbomachine - Results - Laboratory for Experimental Fluid Dynamics\" \/>\n<meta property=\"og:description\" content=\"Additive manufactured ducted propeller (A6061, Tip gap: 2 mm) Objectives: Visualize cavitation erosion on an AM propeller and the evolution of surface pitting over time. 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