30 lines
1.1 KiB
JSON
30 lines
1.1 KiB
JSON
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{
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"grids": {
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"grid": {
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"operators": {
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"xi": "upwind9",
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"eta": "upwind9"
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},
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"x": { "linspace": { "start": -1, "end": 1, "steps": 200 } },
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"y": { "linspace": { "start": -1, "end": 1, "steps": 200 } },
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"boundary_conditions": {
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"east": "this",
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"west": "this",
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"north": "this",
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"south": "this"
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}
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}
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},
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"integration_time": 2.0,
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"initial_conditions": {
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"expressions": {
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"globals": "Mach = 0.4; p0 = 1/(GAMMA * Mach^2);",
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"rho": "1",
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"u": "r=math::hypot(x,y); -math::sin(math::atan2(y, x)) * case(r < 0.2, 5*r, r < 0.4, 2 - 5*r, 0)",
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"v": "r=math::hypot(x,y); math::cos(math::atan2(y, x)) * case(r < 0.2, 5*r, r < 0.4, 2 - 5*r, 0)",
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"p": "r=math::hypot(x,y); case(r < 0.2, p0 + 25.0/2.0*r*r, r < 0.4, p0 + 25.0/2.0*r*r + 4*(1 - 5*r - math::ln(0.2) + math::ln(r)), p0 - 2 + 4*math::ln(2))"
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}
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},
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"gamma": 1.66666666667
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}
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