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Title: right-sized dimple evaluator

Abstract

The code (aka computer program written as a Matlab script) uses a unique set of n independent equations to solve for n turbulence variables. The code requires the input of a characteristic dimension, a characteristic fluid velocity, the fluid dynamic viscosity, and the fluid density. Most importantly, the code estimates the size of three key turbulent eddies: Kolmogorov, Taylor, and integral. Based on the eddy sizes, dimples dimensions are prescribed such that the key eddies (principally Taylor, and sometimes Kolmogorov), can be generated by the dimple rim and flow unimpeded through the dimple’s concave cavity. It is hypothesized that turbulent eddies are generated by the dimple rim at the dimple-surface interface. The newly-generated eddies in turn entrain the movement of surrounding regions of fluid, creating more mixing. The eddies also generate lift near the wall surrounding the dimple, as they accelerate and reduce pressure in the regions near and at the dimple cavity, thereby minimizing the fluid drag.

Authors:
 [1]
  1. Sandia National Laboratories
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1395466
Report Number(s):
right-sized dimple evaluator; 005458MLTPL00
SRC #2243
DOE Contract Number:  
NA0003525
Resource Type:
Software
Software Revision:
00
Software Package Number:
005458
Software CPU:
MLTPL
Source Code Available:
Yes
Related Software:
The software can call the REFPROP NIST database if so desired, but this is not necessary.
Country of Publication:
United States

Citation Formats

Rodriguez, Sal. right-sized dimple evaluator. Computer software. Vers. 00. USDOE. 24 Aug. 2017. Web.
Rodriguez, Sal. (2017, August 24). right-sized dimple evaluator (Version 00) [Computer software].
Rodriguez, Sal. right-sized dimple evaluator. Computer software. Version 00. August 24, 2017.
@misc{osti_1395466,
title = {right-sized dimple evaluator, Version 00},
author = {Rodriguez, Sal},
abstractNote = {The code (aka computer program written as a Matlab script) uses a unique set of n independent equations to solve for n turbulence variables. The code requires the input of a characteristic dimension, a characteristic fluid velocity, the fluid dynamic viscosity, and the fluid density. Most importantly, the code estimates the size of three key turbulent eddies: Kolmogorov, Taylor, and integral. Based on the eddy sizes, dimples dimensions are prescribed such that the key eddies (principally Taylor, and sometimes Kolmogorov), can be generated by the dimple rim and flow unimpeded through the dimple’s concave cavity. It is hypothesized that turbulent eddies are generated by the dimple rim at the dimple-surface interface. The newly-generated eddies in turn entrain the movement of surrounding regions of fluid, creating more mixing. The eddies also generate lift near the wall surrounding the dimple, as they accelerate and reduce pressure in the regions near and at the dimple cavity, thereby minimizing the fluid drag.},
doi = {},
year = {2017},
month = {8},
note =
}

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