USA flag logo/image

An Official Website of the United States Government

THIS PROJECT EXPLORES A MATHEMATICAL MODEL OF A MICROGRAVITYPROCESS INVOLVING…

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
666
Program Year/Program:
1983 / SBIR
Agency Tracking Number:
666
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Dr. Mark J. Hommel
11631 Idlebrook Houston, TX 77070
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1983
Title: THIS PROJECT EXPLORES A MATHEMATICAL MODEL OF A MICROGRAVITYPROCESS INVOLVING MIXED CONVECTION HEAT TRANSFER, NAMELY, THE TIME DEPENDENT FLOW OF FLUID PAST A SPHERE SUBJECT TO A THERMAL GRADIENT.
Agency: NASA
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

THIS PROJECT EXPLORES A MATHEMATICAL MODEL OF A MICROGRAVITYPROCESS INVOLVING MIXED CONVECTION HEAT TRANSFER, NAMELY, THE TIME DEPENDENT FLOW OF FLUID PAST A SPHERE SUBJECT TO A THERMAL GRADIENT. RESULTS OF THIS STUDY PROVIDE INSIGHT INTO THE BASIC FLUID MECHANICS INVOLVED IN SUCH PROCESSES AND ESTABLISH A FOUNDATION FOR EXTENDING THE ANALYSIS TO INCLUDE MASS TRANSFER BY DIFFUSION AND THE ASSOCIATED BUOYANCY EFFECTS. THE FLUID MECHANICS OF HEAT AND MASS TRANSFER PROCESSES IN GRAVITY ARE EXPLORED BY CONSIDERING THE FUNDAMENTAL PROBLEM OF THE IMPULSIVELY STARTED UNIFORM FLOW PAST A HEATED SPHERE. BOTH THE AIDING AND OPPOSING CASES, WHEREIN BUOYANCY FORCES ARE PARALLEL AND ANTI- PARALLEL, RESPECTIVELY, TO THE MEAN FLOW ARE CONSIDERED BY MEANS OF THE TECHNIQUES OF MATCHED ASYMPTOTIC EXPANSIONS. FORMULAS AND GRAPHS ARE PREPARED DESCRIBING THE SHEAR STRESSAND HEAT TRANSFER FROM THE SPHERE FOR A WIDE RANGE OF THE GOVERNING PARAMETERS.

Principal Investigator:

Dr. mark j. hommel
PRINCIPAL INVESTIGATOR

Business Contact:

Small Business Information at Submission:

Dr. Mark J. Hommel
11631 Idlebrook Houston, TX 77070

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No