Influence of mass flux of oxidizer on regression rate of solid fuel in hybrid rocket motors

The relationship curve between regression rate vs surface temperature for Arrhenius-type burning surface was obtained .

To our best knowledge, existing formulas for computing regression rate of H 2O 2/PE hybrid rocket motor are not quite satisfactory.

Microscopic physical experiment on gas migration rate in sandstone model and similarity analysis;

Qualitative analysis of solution in chemostat with different removing rate;

The results from the GPS measurement show that the displacement rate of Sino-Mongolia block is small and the displacement directions of the parts of the block are different.

In this paper,by using strain rate,displacement rate and sub-control mode for the strain rate,we determined the tensile yield strength of metal materials which have significant physical yield,analyzed the impact on using strain rate and displacement rate to determine yield strength,discussed how to use the strain speed control mode correctly in the microcomputer control universal testing machines.

The results showed that the transport velocity of nitrate nitrogen at the front in the wetting body in the horizontal direction and vertical direction was greatly influenced by soil water content and increased with soil water content increase;The transport velocity had a close correlation relationship with transport distance of nitrate nitrogen at the front and decreased with .