Research Article
Thermal Characteristics of a Stratospheric Airship with Natural Convection and External Forced Convection
Table 3
Heat flux of the upper envelope calculated by different forced convection equations.
| Equation | Time | | | | | | | | |
| Equation (viii) | 5:00 | 0 | 0 | 0 | 20.09 | 45.34 | 86.68 | −7.50 | −13.75 | 8:00 | 112.92 | 39.07 | 3.89 | 20.09 | 45.34 | 166.23 | 1.21 | 52.76 | 12:00 | 242.70 | 43.76 | 7.47 | 20.09 | 45.34 | 253.93 | 2.78 | 102.64 | 16:00 | 112.86 | 39.07 | 3.89 | 20.09 | 45.34 | 170.91 | −4.53 | 55.91 | 19:00 | 0 | 0 | 0 | 20.09 | 45.34 | 88.27 | −10.62 | −12.03 |
| Equation (ix) | 5:00 | 0 | 0 | 0 | 20.09 | 45.34 | 91.26 | −4.00 | −21.82 | 8:00 | 112.92 | 39.07 | 3.89 | 20.09 | 45.34 | 138.32 | 0.71 | 81.54 | 12:00 | 242.70 | 43.76 | 7.47 | 20.09 | 45.34 | 189.58 | 2.00 | 167.78 | 16:00 | 112.86 | 39.07 | 3.89 | 20.09 | 45.34 | 140.05 | −2.91 | 84.82 | 19:00 | 0 | 0 | 0 | 20.09 | 45.34 | 91.71 | −5.56 | −20.65 |
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