USA flag logo/image

An Official Website of the United States Government

Physics Based Modeling of Hydrometeor/ Aerodynamic Interactions due to…

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
78025
Program Year/Program:
2006 / STTR
Agency Tracking Number:
B064-013-0018
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
AQUILA LABORATORY, LLC
5385 Hollister Avenue, MB205 Santa Barbara, CA 93111 2389
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2006
Title: Physics Based Modeling of Hydrometeor/ Aerodynamic Interactions due to Ballistic Missiles Radomes
Agency / Branch: DOD / MDA
Contract: HQ0006-06-C-7505
Award Amount: $99,949.00
 

Abstract:

Hydrometeor impact/erosion qualification evaluations of aerospace vehicle components have to relate testing carried out in ground test facilities to what the components experience in the flight environment. The size distribution and condition of the hydrometeors that impact the surface of a radome can differ substantially from what they are in the natural environment before encountering a missile's bow shock. The resulting transformed conditions of the hydrometeors have a strong influence on the magnitude and extent of any damage that results from their collision with a radome's surface. Previous analyses have concentrated on spherical raindrops, however falling raindrops greater that 1 mm are not spherical but develop a flattened shape that becomes more severe with increasing diameter. Rain is present up to roughly 5 km and can be anywhere from a small to moderate fraction of the hydrometeor population in the prevailing adverse weather. Other types of hydrometeors comprising adverse weather are present at higher altitudes where the missile's velocity is increasing. Methods will be developed to calculate what happens to the falling raindrop geometries, the prevalent geometries of irregular shaped ice particles, and additional hydrometeor types when they pass through the missile's bow shock to impact the radome.

Principal Investigator:

William F. Adler
Chief Scientist
8056922341
wadler@sysci.org

Business Contact:

William F. Adler
Sole Proprietor/Owner
8056922341
wadler@sysci.org
Small Business Information at Submission:

AQUILA LABORATORY
5385 Hollister Avenue, MB205 Santa Barbara, CA 93111

EIN/Tax ID: 201951929
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
JOHNS HOPKINS UNIV.
Applied Physics Laboratory 111
Laurel, MD 20723
Contact: Kelly Frazer
Contact Phone: (240) 228-6538
RI Type: Federally funded R&D center (FFRDC)