USA flag logo/image

An Official Website of the United States Government

MODELING OF TURBULENT SPRAY COMBUSTION IN LIQUID ROCKET ENGINE COMPONENTS

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
6835
Program Year/Program:
1988 / SBIR
Agency Tracking Number:
6835
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
CFD Research Corporation
215 Wynn Dr., 5th Floor Huntsville, AL 35805-
View profile »
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1988
Title: MODELING OF TURBULENT SPRAY COMBUSTION IN LIQUID ROCKET ENGINE COMPONENTS
Agency: NASA
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

FUNDAMENTAL PHYSICS OF THE COMBUSTION PROCESSES IN LIQUID ROCKET ENGINES IS VERY COMPLEX. RECENT ADVANCES IN COMPUTATIONAL FLUID DYNAMICS (CFD) PROVIDE A BASIC MECHANISM FOR DETAILED ANALYSES. THE EXISTENCE OF CFD TECHNIQUES INCREASES THE NEED OF ADEQUATE MODELS FOR PHYSICAL PROCESSES, SUCH AS: ATOMIZATION AND SPRAY FORMATIONUNDER SUB AND SUPERCRITICAL CONDITIONS, DROPLET-DROPLET INTERACTION, TURBULENCE, MASS TRANSFER VIA EVAPORATION AND DIFFUSION, AND COMBUSTION OF DILUTE AND DENSE SPRAYS. THE PROPOSED STUDY WILL FOCUS ON THE TESTING AND REFINEMENT OF THE PHYSICAL MODELS FOR: (A) MASS TRANSFER UNDER TRANSITION (FROM SUBCRITICAL TO SUPERCRITICAL) CONDITIONS, (B) TURBULENT DIFFUSION OF DROPLETS AND DENSED-GAS PUFFS, AND (C) GROUP COMBUSTION IN THE DENSE SPRAY REGION. THESE MODELS WILL BE INCORPORATED INTO A REACTIVE FLOW ANALYSIS CODE, REFLAN (DEVELOPED FOR NASA, FOR LIQUID ROCKET MOTORS). A SERIES OF TWO-DIMENSIONAL CALCULATIONS WILL BE PERFORMED FOR THE FUELSIDE PREBURNER OF THE SPACE SHUTTLE MAIN ENGINE. THE ADOPTED CODE WILL PROVIDE A SOUND BASE FOR: (A) RESEARCHINTO PHYSICAL MODELS; AND (B) ANALYSIS OF REACTIVE FLOWS. THE CODE WILL BE DOCUMENTED AND DELIVERED IN SOURCE FORM. UNDER PHASE II, EMPHASIS WILL BE ON FURTHER VERIFICATION OF THE CODE SUCH THAT IT CAN BECOME A RELIABLE ANALYSIS TOOL.

Principal Investigator:

Ashok k singhal

Business Contact:

Small Business Information at Submission:

Cfd Research Corp
3313 Bob Wallace Ave #205 Huntsville, AL 35805

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