NTHU PME

Department of Power Mechanical Engineering, NTHU

Topic/ Seminar

On the Structured Convection

J.M. Floryan

Department of Mechanical and Materials Engineering

The University of Western Ontario

London, Ontario, Canada

Term “Structured Convection” refers to natural convection driven by patterns of heating. This convection is different from the classical Rayleigh-Bénard convection as it occurs regardless of the heating intensity as well as regardless of the position of the heating sources. Fluid movement is driven by density gradients but prediction of the system response is complicated due to spatial parametric resonance effects. A review of the recent results will be presented, primarily from the point of view of drag reduction associated with such convection. The relevant information can be found in the references given below.

1. “Convective Heat Transfer in Non-Uniformly Heated Corrugated Slots”, A. Abtahi and J. M. Floryan. Phys. Fluids 29, 103605 (2017); doi: 10.1063/1.4989686.
2.  “Natural Convection and Thermal Drift”, A. Abtahi & J. M. Floryan, J. Fluid Mech. Vol.826, 2017, 553-582
3. "Natural Convection under Sub-Critical Conditions in the Presence of Heating Non-Uniformities” M. Z. Hossain & J. M. Floryan, Int. J. Heat Mass Trans., v.114, 8-19, 2017.
4. “Natural Convection in Corrugated Slots” A. Abtahi & J. M. Floryan, J. Fluid Mech., v. 815, 2017, 537-569.
5. “Drag Reduction in a Thermally Modulated Channel” M.Z. Hossain & J.M. Floryan, J. Fluid Mech., v. 791, 2016, 122-153.
6. “Natural Convection in a Horizontal Fluid Layer Periodically Heated from Above and Below” M. Z. Hossain & J.M. Floryan, Phys. Rev. E 92, 023015, 2015. 
7. "Mixed Convection in a Periodically Heated Channel" M.Z. Hossain & J.M. Floryan, J. Fluid Mech., v. 768, 2015, 51-90.
8. “Drag Reduction in Heated Channels” Daniel Floryan & J.M. Floryan, J. Fluid Mech., v. 765, 2015, 353-395.
9. “Natural Convection in a Fluid Layer Periodically Heated from Above” M.Z. Hossain & J.M. Floryan, Phys. Rev. E 90, 023015, 2014.
10. "Instabilities of Natural Convection in a Periodically Heated Layer" M. Z. Hossain & J. M. Floryan, J. Fluid Mech., 2013, v. 733, 33-67.
11. "Drag Reduction due to Spatial Thermal Modulations" M.Z. Hossain, D. Floryan & J.M. Floryan, J. Fluid Mech., 2012, v. 713, 398-419.

Brief Biography of J.M. Floryan: Prof J.M. Floryan received his PhD from the Virginia Polytechnic Institute and State University in 1980. He joined the University of Western Ontario, Canada in 1986 and has been professor since 1990. His research interests involve: Interfacial Fluid Dynamics; Hydrodynamic Stability; Boundary-Layer Flows; Forced and Natural Convection; Non-gravitational Convection and Material Processing; Computational Methods; Free-Boundary Problems, Flow Control, Design of MEMS.

Professor Floryan’s professional appointments and honors are; President, The Canadian Society of Mechanical Engineering (2018-present); Associate Dean, 1996-2001; Head of Department of Mechanical and Materials Engineering, 2005-2016; Fellow of the American Physical Society, 2015; Fellow, Engineering Institute of Canada, 2008; Fellow, American Society of Mechanical Engineers, 1999; Fellow, The Canadian Society for Mechanical Engineering, 2003; Fellow, Canadian Aeronautics and Space Institute. 2007; Sigma Xi; Phi Kappa Phi

Thursday, 2018.12.6  10:30-12:00,

NTHU PME ENG1301/ R301, Eng. Bldg. I, NTHU

Host：PME Prof.Lin Chao-An

Host: (PME) Prof. Chao-An Lin

~~ Public Speech  Welcome ~~