Russia-Ukraine War - News, Discussions & Updates
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Hendarto
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They just deployed Zirkon now They use Kinzhal and I saw some of the warheads purportedly shot down by Ukro. But to me, they all look like dumb bomb blunted, round heads. Typically Hypersonic warhead is of double cone type or very pointed warhead with a wing. They are double cones for a reason.I asked copilot here what copilot said
The double-cone configuration is a fascinating subject in the realm of hypersonic flow. Let’s delve into why it’s significant:
- Shock-Wave–Boundary-Layer Interaction:
- When hypersonic flow occurs over a double cone, it represents a canonical case of shock-wave–boundary-layer interaction.
- This interaction involves the shock waves generated by the supersonic flow interacting with the boundary layer around the cone.
- The double cone allows us to study this phenomenon in a more complex three-dimensional context compared to its two-dimensional counterpart (such as a double wedge) 1.
- Insensitive to Small Bluntness:
- Research indicates that the double-cone flow is insensitive to small bluntness in terms of shock structures, separation region sizes, and surface pressure and heat flux distributions.
- However, there exists a critical nose radius beyond which the separation bubble grows dramatically.
- This critical radius is crucial for understanding the behavior of the flow 2.
- Leading-Edge Bluntness and Flow Features:
- The sudden change in flow features is primarily caused by pressure overexpansion on the first cone due to leading-edge bluntness.
- When the nose radius exceeds the critical value, the separation bubble expands significantly.
- Upstream pressure can no longer resist the large adverse pressure gradient induced by shock impingement 2.
- Triple-Deck Formulation:
- Researchers analyze and interpret the numerical data based on a triple-deck formulation.
- This formulation considers the interactions between the shock wave, boundary layer, and inviscid flow.
- It sheds light on the underlying mechanisms driving the flow behavior 2.
This is Hypersonic warhead
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