{ "126928-21858148": { "datetime_modified":"20240925T085630", "datetime_start":"20241001T150000", "datetime_end":"20241001T160000", "has_end_time":1, "date_start":"2024-10-01", "date_end":"2024-10-01", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Large Eddy Simulation of Turbulent Cavitating Flows", "occurrence_title":"", "combined_title":"Large Eddy Simulation of Turbulent Cavitating Flows: Krishnan Mahesh, Professor, University of Michigan Naval Architecture and Marine Engineering", "event_subtitle":"Krishnan Mahesh, Professor, University of Michigan Naval Architecture and Marine Engineering", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Abstract:\r\n\r\nCavitation is a complex multi-scale phenomenon that has implications from intense sound production to erosion in engineering applications. This talk will discuss our efforts at developing the large-eddy simulation capability for the simulation of turbulent cavitating flows. LES of cavitation is challenged by phase change modeling, acoustic stiffness, sharp multiphase fronts, strong compressibility effects, consistent accounting of nuclei, broadband turbulence and subgrid effects.\r\n\r\nLES of partial cavitation will be discussed under the same conditions as experiments in a sharp wedge configuration. Physical mechanisms of cavity transition observed in the experiments, i.e., re-entrant jet and bubbly shock waves, are both captured in the LES over their respective regimes. Vapor volume fraction data obtained from the LES will be quantitatively compared to X-ray densitometry, and the results will be discussed. Cavitation nuclei are likely to be introduced through the free-stream as well as at solid surfaces. We will present a novel approach based on Gibbs free energy minimization to predict nuclei concentrations. The results from the proposed work will be applied to account for dissolved gas content in CSM measurements and predict several decades of experimentally observed trends in nuclei concentrations. Cavitating flows possess a range of vapor length scales ranging from tiny vapor bubbles to large vapor pockets. We will discuss a compressible hybrid model to capture both sub-grid vapor nuclei and massive sheet cavity dynamics. Finally, physical aspects of inception due to the interaction of a counter-rotating vortex pair generated behind a pair of hydrofoils will be presented.", "occurrence_notes":null, "guid":"126928-21858148@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/126928", "building_id":"1000447", "building_name":"Herbert H. Dow Building", "campus_maps_id":"51", "room":"2150", "location_name":"Herbert H. Dow Building", "has_livestream":0, "cost":"", "tags":["Computational Science","seminar","Naval Architecture and Marine Engineering","Michigan Engineering","Micde Seminar","Micde","Engineering","College Of Engineering"], "website":"", "sponsors":[ { "group_name":"Michigan Institute for Computational Discovery and Engineering", "group_id":"3286", "website":"http:\/\/micde.umich.edu" }, { "group_name":"Mechanical Engineering", "group_id":"4323", "website":"https:\/\/www.facebook.com\/MechanicalEngineeringUniversityOfMichigan\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2024\/09\/event_126928_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2024\/09\/event_126928_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2024\/09\/event_126928_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2024\/09\/event_126928_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2024\/09\/event_126928_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2024\/09\/event_126928_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2024\/09\/event_126928_original-1.png" }, "occurrence_count":1, "first_occurrence":21858148 } , "126946-21858168": { "datetime_modified":"20241016T123210", "datetime_start":"20241001T150000", "datetime_end":"20241001T160000", "has_end_time":1, "date_start":"2024-10-01", "date_end":"2024-10-01", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"The Home Depot presents The Finance Forum", "occurrence_title":"", "combined_title":"The Home Depot presents The Finance Forum", "event_subtitle":"", "event_type":"Careers \/ Jobs", "event_type_id":"2", "description":"Are you a recent graduate or soon-to-be graduate with an interest in finance? Join The Home Depot for our Virtual Finance Forum! This virtual event is designed to provide early career finance professionals with valuable insights into early career roles in finance at The Home Depot, company culture, and career growth opportunities. Connect with our finance professionals during an interactive speaker panel with time for Q&A.Come learn about the benefits at The Home Depot:\nProfessional developmentthrough training programs and certifications\nFlexible work hours with remote and hybrid opportunities\nA company culture that prioritizes work-life balance\nCompetitive compensation packages, including a 401(K) savings plan with company match\nMerit increases and performance bonuses\nComprehensive health and wellness programs\nThe Home Depot values work-life balance and opportunities for growth. Our company provides great support for continuous learningand career advancement. You'll also hear about our commitment to an inclusive and diverse work environment, which fosters innovation and collaboration.\u00a0We hope to see you there!", "occurrence_notes":null, "guid":"126946-21858168@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/126946", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"", "location_name":"", "has_livestream":0, "cost":"", "tags":[], "website":"", "sponsors":[ { "group_name":"University Career Center UCC", "group_id":"1140", "website":"http:\/\/careercenter.umich.edu" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21858168 } }