Thermal Simulations of the Hohlraum Cryogenic Target: Low-Mode Control and Parameter Optimization

Predicting spherical symmetry degeneration of non-infrared deuterium ice layer in a cryogenic capsule

“…The relationship between the DT ice layer thickness and capsule outer temperature deviations has already been resolved theoretically by different means [25][26][27][28][29][30][31][32][33]. All of them are based on the steady state heat transfer equation applied in a radial direction (equation (1), where r, T, Q, and k are the radial coordinate, temperature, bulk heat generation and thermal conductivity, respectively).…”

“…All of them are based on the steady state heat transfer equation applied in a radial direction (equation (1), where r, T, Q, and k are the radial coordinate, temperature, bulk heat generation and thermal conductivity, respectively). All the results can be summarized as equation (2) for specified geometries of capsule (figure 1), where r a , r i , r g , k a , k i , Q i and T a are ablator outer radius, ice fuel outer radius, gas fuel outer radius, ablator thermal conductivity, ice fuel thermal conductivity, ice fuel bulk heat generation and ablator outer temperature, respectively [31]. It is suitable for small variations of r g and T a and more importantly 'Q i ≠ 0'.…”