SIMULATION OF A BLAST WAVE IN A SHOCK TUBE BY USING PERFORATED PLATES IN THE DRIVER

Authors
  1. Zhang, K.Y.
  2. Gottlieb, J.J.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN);Toronto Univ, Toronto ONT (CAN) Inst for Aerospace Studies
Abstract
The simulation of a blast wave in a conventional air-driven shock tube by means of judiciously positioning perforated plates in the driver with porosities judiciously selected is investigated both numerically and experimentally. For the numerical study the random-choice method is used in an much improved and extended form. Most notable in terms of the analysis, which is presented and explained in detail, is the incorporation of perforated plates with area changes and head losses, head losses from poor diaphragm breakage, friction ahd heat transfer at the walls, mass loss be jets out of perforations in the walls, sudden changes in grid node spacing, and duct ends that are open to the atmosphere and may or may not include a reflection eliminator. The analysis is also developed to make the computer code efficient, and a factor of at least two is gained in computational time over earlier UTIAS programs. TRUNCATED
Report Number
CR-64/85 — Contract Report
Date of publication
15 Aug 1985
Number of Pages
241
DSTKIM No
85-03671
CANDIS No
48430
Format(s):
Hardcopy;Originator's fiche received by DSIS

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