ANALYSIS OF WATER WAVES GENERATED EXPLOSIVELY AT THE UPPER CRITICAL DEPTH.
URS CORP BURLINGAME CALIF
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A theoretical analysis is made of water surface waves generated by explosive spheres partially submerged near the upper critical depth of burst UCD. The analysis is based on engineering approximation, and the results are compared with extant data. The analysis is the first part of a combined theoretical-experimental study of explosive wave generation. The analysis indicates that anomalous reflection of the water shock wave from the water surface near the charge may restrict the flow out of the expanding cavity for depths of burst near the UCD and that this may be the main reason for the UCD effect. It seems reasonable to suppose that the shock wave from a nuclear explosion located at the center of an equivalent sphere of TNT at the UCD might be similar to that from TNT after the steam cavity has grown to roughly the size of the TNT sphere. Therefore, if it is established experimentally that anomalous reflection of the shock wave is the cause of the UCD effect for TNT, then a similar effect might be expected for nuclear explosions. Author
- Ammunition and Explosives