Publication detail

Matematické modelování obranného mechanismu brouka Brachinae

FORMAN, M. MCINTOSH, A.

Original Title

Matematické modelování obranného mechanismu brouka Brachinae

English Title

ON MATHEMATICAL MODELLING OF DISCHARGE MECHANISM OF BRACHINAE BEETLE DEFENCE SYSTEM

Type

conference paper

Language

Czech

Original Abstract

A two-phase computation is performed to simulate the hot discharge from the brachinine beetle (Bombardier beetle). The study concentrates on the heating and discharge process within the reaction chamber rather then modelling the full kinetics of the hydroquinone and hydrogen peroxide reaction (with catalase and peroxidase). Using this approach the numerical model (based on commercial CFX software) simulates the heat generation by following an artificially assigned scalar injected from the wall. The heat assigned then converts some of the water by pool boiling into steam. The subsequent pressure increase in the two-phase system is modelled, and the ejection of the hot mixture up to the point of emergence is discussed and evaluated for different geometrical configurations. The main parameters for efficient discharge are identified.

English abstract

A two-phase computation is performed to simulate the hot discharge from the brachinine beetle (Bombardier beetle). The study concentrates on the heating and discharge process within the reaction chamber rather then modelling the full kinetics of the hydroquinone and hydrogen peroxide reaction (with catalase and peroxidase). Using this approach the numerical model (based on commercial CFX software) simulates the heat generation by following an artificially assigned scalar injected from the wall. The heat assigned then converts some of the water by pool boiling into steam. The subsequent pressure increase in the two-phase system is modelled, and the ejection of the hot mixture up to the point of emergence is discussed and evaluated for different geometrical configurations. The main parameters for efficient discharge are identified.

Keywords

CFD, biomatics, combustion

Authors

FORMAN, M.; MCINTOSH, A.

Released

27. 6. 2004

Location

Zvolen

ISBN

80-228-1333-8

Book

XXIII. medzinárodná vedecká konferencia katedier a pracovísk mechaniky tekutín a termomechaniky

Pages from

138

Pages to

144

Pages count

7

BibTex

@inproceedings{BUT20512,
  author="Matěj {Forman} and Andrew {McIntosh}",
  title="Matematické modelování obranného mechanismu brouka Brachinae",
  booktitle="XXIII. medzinárodná vedecká konferencia katedier a pracovísk mechaniky tekutín a termomechaniky",
  year="2004",
  pages="7",
  address="Zvolen",
  isbn="80-228-1333-8"
}