Numerical analysis of ball-type turbulators in tube heat exchangers with computational fluid dynamic simulations

2018 ◽  
Vol 16 (7) ◽  
pp. 3771-3780 ◽  
Author(s):  
F. Afshari ◽  
H. Ghasemi Zavaragh ◽  
G. Di Nicola
Keyword(s):  
Numerical Analysis ◽  
Computational Fluid Dynamic ◽  
Heat Exchangers ◽  
Fluid Dynamic ◽  
Dynamic Simulations

Towards real-time fire data synthesis using numerical simulations

2021 ◽  
pp. 073490412199344
Author(s):  
Wolfram Jahn ◽  
Frane Sazunic ◽  
Carlos Sing-Long
Keyword(s):  
Real Time ◽  
Computational Fluid Dynamic ◽  
Dynamic Models ◽  
Fluid Dynamic ◽  
Near Field ◽  
Computing Time ◽  
Temperature Correction ◽  
Dynamic Simulations ◽  
Conservation Of Energy ◽  
Fire Scenarios

Synthesising data from fire scenarios using fire simulations requires iterative running of these simulations. For real-time synthesising, faster-than-real-time simulations are thus necessary. In this article, different model types are assessed according to their complexity to determine the trade-off between the accuracy of the output and the required computing time. A threshold grid size for real-time computational fluid dynamic simulations is identified, and the implications of simplifying existing field fire models by turning off sub-models are assessed. In addition, a temperature correction for two zone models based on the conservation of energy of the hot layer is introduced, to account for spatial variations of temperature in the near field of the fire. The main conclusions are that real-time fire simulations with spatial resolution are possible and that it is not necessary to solve all fine-scale physics to reproduce temperature measurements accurately. There remains, however, a gap in performance between computational fluid dynamic models and zone models that must be explored to achieve faster-than-real-time fire simulations.

Computational fluid dynamic simulations of coal-fired utility boilers: An engineering tool

Fuel ◽  
2009 ◽  
Vol 88 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Efim Korytnyi ◽  
Roman Saveliev ◽  
Miron Perelman ◽  
Boris Chudnovsky ◽  
Ezra Bar-Ziv
Keyword(s):  
Computational Fluid Dynamic ◽  
Fluid Dynamic ◽  
Dynamic Simulations ◽  
Utility Boilers

scholarly journals Computational fluid dynamic simulations of a cavopulmonary assist device for failing Fontan circulation

2019 ◽  
Vol 158 (5) ◽  
pp. 1424-1433.e5 ◽  
Author(s):  
W.C. Patrick Lin ◽  
Matthew G. Doyle ◽  
S. Lucy Roche ◽  
Osami Honjo ◽  
Thomas L. Forbes ◽  
...  
Keyword(s):  
Computational Fluid Dynamic ◽  
Fluid Dynamic ◽  
Fontan Circulation ◽  
Assist Device ◽  
Dynamic Simulations ◽  
Cavopulmonary Assist Device ◽  
Failing Fontan

scholarly journals High resolution lung airway cast segmentation with proper topology suitable for computational fluid dynamic simulations

2010 ◽  
Vol 34 (7) ◽  
pp. 572-578 ◽  
Author(s):  
James P. Carson ◽  
Daniel R. Einstein ◽  
Kevin R. Minard ◽  
Michelle V. Fanucchi ◽  
Christopher D. Wallis ◽  
...  
Keyword(s):  
High Resolution ◽  
Computational Fluid Dynamic ◽  
Fluid Dynamic ◽  
Dynamic Simulations

Assessing the credibility of a series of computational fluid dynamic simulations of open channel flow

2003 ◽  
Vol 17 (8) ◽  
pp. 1539-1560 ◽  
Author(s):  
R. J. Hardy ◽  
S. N. Lane ◽  
R. I. Ferguson ◽  
D. R. Parsons
Keyword(s):  
Channel Flow ◽  
Computational Fluid Dynamic ◽  
Open Channel ◽  
Fluid Dynamic ◽  
Open Channel Flow ◽  
Dynamic Simulations
Sign in / Sign up

Export Citation Format

Share Document