NDLI: The effect of an isogrid on cryogenic propellant behavior and thermal stratification

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The effect of an isogrid on cryogenic propellant behavior and thermal stratification

Content Provider	NASA Technical Reports Server (NTRS)
Author	Piquero, Jorge L. Kirk, Daniel R. Campbell, Mike Chase, Sukhdeep Schallhorn, Paul A. Oliveira, Justin Chintalapati, Sunil
Copyright Year	2007
Description	All models for thermal stratification available in the presentation are derived using smooth, flat plate laminar and turbulent boundary layer models. This study examines the effect of isogrid (roughness elements) on the surface of internal tank walls to mimic the effects of weight-saving isogrid, which is located on the inside of many rocket propellant tanks. Computational Fluid Dynamics (CFD) is used to study the momentum and thermal boundary layer thickness for free convection flows over a wall with generic roughness elements. This presentation makes no mention of actual isogrid sizes or of any specific tank geometry. The magnitude of thermal stratification is compared for smooth and isogrid-lined walls.
File Size	6818574
Page Count	23
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20120003262
Archival Resource Key	ark:/13960/t6838s803
Language	English
Publisher Date	2007-09-10
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Thermodynamics Temperature Distribution Flat Plates Computational Fluid Dynamics Boundary Layer Thickness Cryogenics Mathematical Models Surface Roughness Propellant Tanks Stratification Walls Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Presentation

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