A Helmholtz type pulse combustor with a flapper valve is designed.

In this paper, as the foundation for the future low-cost development of the Helmholtz pulse jet engine, the method of using the CFD simulation to develop the Helmholtz pulse jet engine is studied.

In KFHMEA, the population is divided into several sub-populations and Helmholtz machine is used to estimate the state of each sub-population.

The calculation results show that the volume force density can be expressed in the form of Helmholtz force when the permeability of magnetic fluid is independent of the applied magnetic field.

Chemical reactions participated by ions and the applications of Gibbs-Helmholtz equation;

In inorganic chemistry teaching material,approximate form of Gibbs-Helmholtz equation is often mentioned.

A class of nonlinear local orthogonal transformations for Helmholtz equation;

Solution of Helmholtz equation by differential cubature method;

The modified HELS method is based on the assumption that the stimulant sound field is the superposition of the sound fields induced by multiple coherent acoustic sources and the pressure produced by the sources can be expressed as an expansion of the particular solutions to Helmholtz equation.