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UID:21@cds.iisc.ac.in
DTSTART;TZID=Asia/Kolkata:20231212T103000
DTEND;TZID=Asia/Kolkata:20231212T113000
DTSTAMP:20231207T052739Z
URL:https://cds.iisc.ac.in/events/seminar-cds-102-12th-december-compressib
 le-turbulence-and-mixing-from-homogeneous-isotropic-to-convective-turbulen
 ce/
SUMMARY:{Seminar} @ CDS: #102 : 12th December: "Compressible Turbulence and
  Mixing: From Homogeneous Isotropic to Convective Turbulence"
DESCRIPTION:Department of Computational and Data Sciences\n\nDepartment Sem
 inar\n\n\n\nSpeaker : Dr. John. P. John\nTitle : "Compressible Turbulence 
 and Mixing: From Homogeneous Isotropic to Convective Turbulence"\nDate &am
 p\; Time : December 12\, 2023\, 10:30 AM\n\nVenue : # 102\, CDS Seminar Ha
 ll\n\n\n\nABSTRACT\n\nCompressible turbulence and turbulent mixing play a 
 critical role in diverse systems ranging from engineering devices to astro
 physics. Attempts to make progress using traditional governing parameters\
 , namely the Taylor Reynolds number (Rλ) and the turbulent Mach number (M
 t) have been marred with inconsistencies and conflicting results in the li
 terature. Combining a massive DNS database and a novel asymptotic theoreti
 cal approach\, we identify a new nondimensional scaling parameter\, δ\, t
 he ratio of compressible to vortical strength. This parameter along with t
 raditional parameters is used to unravel universal behaviour and scaling l
 aws resolving several major issues. Results include division of the δ −
  Mt phase into different physical regimes\, scaling of spectra\, dissipati
 ve anomaly and passive scalar mixing in compressible turbulence. Finally s
 ome exciting new results on fully compressible convection going beyond the
  commonly used Boussinesq and anelastic approximations will be reported.\n
 \nBIOGRAPHY\n\nDr John Panickacheril John is currently a Alexander von Hum
 boldt postdoctoral fellow at the Institute of Thermodynamics and Fluid Mec
 hanics\, Technische Universit¨at\, Ilmenau. His research interests are in
  compressible turbulence\, convection and dispersed compressible multiphas
 e turbulence using a combination of theory and high-fidelity direct numeri
 cal simulations. He completed his undergraduate studies in mechanical engi
 neering from National Institute of Technology\, Calicut. He did his master
 s and Ph.D in aerospace engineering from Purdue University and Texas A &am
 p\; M university respectively.\n\nHost Faculty: Dr. Konduri Aditya\n\n\n\n
 ALL ARE WELCOME
CATEGORIES:Events,Talks
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