A Multiple-Scales Partial Solution of the Pulse-Forced Rayleigh-Plesset Equation of Cavitation Bubble Dynamics

reportActive / Technical Report | Accession Number: ADA193733 | Open PDF

Abstract:

A partial multiple scales analysis of the forced Rayleigh Plesset equation of cavitation bubble dynamics is performed. Previous studies of cavitation inception on hemispherical headforms have revealed the existence of bubble ring cavitation on hemispherical headforms having a laminar separation region. Nuclei passing through the low pressure region that exists prior to the separation bubble experience vaporous growth which is characterized by two time scales. The forcing function pulse which acts on the nuclei is characterized by the laboratory time Tau which varies slowly compared to the characteristic bubble time Tau which characterizes the response time of a typical microscopic cavitation nucleus.

Author(s):
Baker, B. B. ; Parkin, B. R.
Author Organization(s):
PENNSYLVANIA STATE UNIV STATE COLLEGE APPLIED RESEARCH LAB
Descriptive Note:
Technical rept.
Supplementary Note:
DOI: 10.21236/ADA193733
Pagination:
0164

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ARL/PSU/TR-88-002
Contract/Grant Number(s):
N00014-85-C-6041
Monitor Series:
NAVSEA
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.4_Force Support; JCA_1.4.2_Health Service Delivery; JCA_1_Force Support; JCA_1.3_Human Capital Management; JCA_3.2_Engagement; JCA_3_Force Application; JCA_1.3.2_Personnel Management; JCA_3.2.1_Kinetic Means; JCA_1.2_Force Preparation; JCA_1.2.3_Educating
Modernization Areas:
Autonomy; AI and Machine Learning
Communities of Interest:
Air Platforms
Descriptor(s):
*BUBBLES, *CAVITATION, *LAMINAR FLOW, DYNAMICS, FLOW SEPARATION, INTEGRAL EQUATIONS, LOW PRESSURE, NUCLEATION, REACTION TIME, REGIONS, RINGS, SCALE, TIME
Field(s)/Group(s):
Fluid Mechanics
Keyword(s):
RAYLEIGH PLESSET EQUATIONS, ELLIPTIC INTEGRALS
Report Date:
1988 Feb 01