All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Mathematical Modelling of a pressure focusing Mechanism in a Heart?shaped Naturally occuring Combustor

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F03%3APU55657" target="_blank" >RIV/00216305:26210/03:PU55657 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Mathematical Modelling of a pressure focusing Mechanism in a Heart?shaped Naturally occuring Combustor

  • Original language description

    The role of pressure wave focusing in a heart-shaped reaction chamber of Brachinus (Bombardier beetle) was investigated. The defence mechanism of Brachinus was described and numerically modeled. The shape of a naturally occurring reaction chamber wasusedfor practical methane-air combustion to study the advantages of the design. Mathematical modelling of gas combustion shows pressure focusing mechanism given by the combustor shape and its important role in a gas ejection from the vessel. Numerical l calculations with stoichiometric methane-air mixture has been carried out showing different features of the design. Fully compressible laminar flow with single step kinetic mechanism was used. The ignition was set-up by rising temperature on the hot walls of the combustor. Results show, that the two phase behavior of the Brachinus defence mechanism cannot be easily reproduced with gaseous combustible mixture. The design of the chamber shows very unique flow-field and pressure wave character

  • Czech name

    Matematický model zaměření tlaku ve spalovací komoře srdcovitého tvaru, nalezenou v přírodě

  • Czech description

    Význam koncentrace tlakových pulsů v srdcovité komoře brouka Brachinae byl zkoumán numericky. Geometrie srdcovité komory obranného mechanismu brouka byla použita pro zvětšený tvar komory na spalování metanu. matematický model prokazuje výrazný vliv koncentrace tlaku na účinnost ejektoru. Vznícení směsi bylo realizováno zvýšením teploty na stěně a pomocí parametrické studie byly určeny hlavní důležité parametry. Další výzkum probíhá s cílem použít design pro vzněcovací zařízení.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BK - Liquid mechanics

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2003

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings of the 10th Int. Congress on Sound and vibration

  • ISBN

  • ISSN

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    743-748

  • Publisher name

    NEUVEDEN

  • Place of publication

    NEUVEDEN

  • Event location

    Stockholm

  • Event date

    Jul 7, 2003

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article