剑桥大学出版社期刊
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作者:Ismail Hameduddin , Tamer A. Zaki
来源:[J].Journal of Fluid Mechanics(IF 2.183), 2019, Vol.865, pp.363-380Cambridge U Press
摘要:This work demonstrates that the popular arithmetic mean conformation tensor frequently used in the analysis of turbulent viscoelastic flows is not a good representative of the ensemble. Alternative means based on recent developments in the literature are proposed, namely, the geo...
作者:Jiho You , Tamer A. Zaki
来源:[J].Journal of Fluid Mechanics(IF 2.183), 2019, Vol.866, pp.526-566Cambridge U Press
摘要:Direct numerical simulations are performed to study zero-pressure-gradient turbulent boundary layers beneath quiescent and vortical free streams. The inflow boundary layer is computed in a precursor simulation of laminar-to-turbulence transition, and the free-stream vortical forc...
作者:Qi Wang , Yosuke Hasegawa , Tamer A. Zaki
来源:[J].Journal of Fluid Mechanics(IF 2.183), 2019, Vol.870, pp.316-352Cambridge U Press
摘要:Identifying the source of passive scalar transported in a turbulent environment from remote measurements is an ill-posed problem due to the irreversibility of diffusive processes. A significant difficulty of the source reconstruction is due to different potential source loca...
作者:Amir Esteghamatian , Tamer A. Zaki
来源:[J].Journal of Fluid Mechanics(IF 2.183), 2019, Vol.875, pp.286-320Cambridge U Press
摘要:Direct numerical simulations of viscoelastic turbulent channel flow laden with neutrally buoyant spherical particles are performed. Two FENE-P viscoelastic and one Newtonian fluid are examined, and for each the particle-laden configuration is contrasted to a reference condit...
作者:Reza Jahanbakhshi , Tamer A. Zaki
来源:[J].Journal of Fluid Mechanics(IF 2.183), 2019, Vol.876, pp.87-121Cambridge U Press
摘要:Laminar-to-turbulent transition in a zero-pressure-gradient boundary layer at Mach 4.5 is studied using direct numerical simulations. For a given level of total disturbance energy, the inflow spectrum was designed to correspond to the nonlinearly most dangerous condition tha...
作者:... Seo Yoon Jung , Hyung Jin Sung , Tamer A. Zaki
来源:[J].Journal of Fluid Mechanics(IF 2.183), 2013, Vol.726, pp.196-225Cambridge U Press
摘要:Abstract Direct numerical simulations (DNS) of turbulent boundary layers over isothermally heated walls were performed, and the effect of viscosity stratification on the turbulence statistics and skin friction were investigated. An empirical relation for temperature-dependent vis...

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