Special session: computational predictability of natural convection flows in enclosures
Conference
·
OSTI ID:15006259
Modern thermal design practices often rely on a ''predictive'' simulation capability--although predictability is rarely quantified and often difficult to confidently achieve in practice. The computational predictability of natural convection in enclosures is a significant issue for many industrial thermal design problems. One example of this is the design for mitigation of optical distortion due to buoyancy-driven flow in large-scale laser systems. In many instances the sensitivity of buoyancy-driven enclosure flows can be linked to the presence of multiple bifurcation points that yield laminar thermal convective processes that transition from steady to various modes of unsteady flow. This behavior is brought to light by a problem as ''simple'' as a differentially-heated tall rectangular cavity (8:1 height/width aspect ratio) filled with a Boussinesq fluid with Pr = 0.71--which defines, at least partially, the focus of this special session. For our purposes, the differentially-heated cavity provides a virtual fluid dynamics laboratory.
- Research Organization:
- Lawrence Livermore National Lab., Livermore, CA (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15006259
- Report Number(s):
- UCRL-JC-140190
- Country of Publication:
- United States
- Language:
- English
Similar Records
Transient natural convection in rectangular enclosures heated from one side and cooled from above
Significant questions in buoyancy affected enclosure or cavity flows
Numerical investigation of transient flow-mode transition of laminar natural convection in an inclined enclosure
Journal Article
·
Thu Dec 31 23:00:00 EST 1998
· International Communications in Heat and Mass Transfer
·
OSTI ID:328390
Significant questions in buoyancy affected enclosure or cavity flows
Conference
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:6797988
Numerical investigation of transient flow-mode transition of laminar natural convection in an inclined enclosure
Journal Article
·
Thu Feb 06 23:00:00 EST 1997
· Numerical Heat Transfer. Part A, Applications
·
OSTI ID:471113