Sökning: "Malte Kjellander"

Hittade 2 avhandlingar innehållade orden Malte Kjellander.

1. 1. Energy concentration by converging shock waves in gases

   Författare :Malte Kjellander; Nicholas Apazidis; Gabi Ben-Dor; KTH; []
   Nyckelord :;

   Sammanfattning : Converging shock waves have been studied experimentally in a shock tube, and numerically using inviscid calculations and the theory of geometrical shock dynamics. The converging shock waves were created in a shocktube with two modular test sections designed to create cylindrical respectively spherical waves. LÄS MER

3. 2. On dynamics and thermal radiation of imploding shock waves

   Författare :Malte Kjellander; Nicholas Apazidis; Gabi Ben-Dor; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; converging shock waves; polygonal shock waves; temperature measurments; argon; plasma creation; ionisation; spectrometry; Engineering mechanics; Teknisk mekanik;

   Sammanfattning : Converging cylindrical shock waves have been studied experimentally. Numericalcalculations based on the Euler equations and analytical comparisons basedon the approximate theory of geometrical shock dynamics have been made tocomplement the study.Shock waves with circular or polygonal shock front shapes have been createdand focused in a shock tube. LÄS MER