INVESTIGATION OF A BOUNDARY LAYER ATTENUATION SYSTEM. PART 1. LOW OVERPRESSURES.

Abstract

An air blast wave attenuation system for use with hardened structures and air entrainment systems was investigated, but analysis of the system which depends upon the relationship between choked flow and non-steady supersonic boundary layer formation is not so advanced that it can be completely described. However, an empirical confirmation is included and the feasibility of such an attenuator was verified experimentally. Results from shock tube experiments show that shock front attenuation increased nominally as the incident shock pressure was increased. In addition, significant attenuation was noted in the flow-field behind the shock front. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1969
Accession Number
AD0688419

Entities

People

  • Dana Williams

Organizations

  • Naval Facilities Engineering Service Center

Tags

DTIC Thesaurus Topics

  • Air Entrainment
  • Attenuation
  • Attenuators
  • Blast
  • Blast Waves
  • Boundaries
  • Boundary Layer
  • Entrainment
  • Flow
  • Flow Fields
  • Hardened Structures
  • Layers
  • Overpressure
  • Shock Tubes

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Combustion and Flow Dynamics.
  • Mathematics or Statistics

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow