内锥流场参数对定平面形状乘波体性能的影响

doi:10.7527/S1000-6893.2025.32041

Abstract

Abstract:

The straight-shock internal conical flow fields with various wall boundaries are generated by solving the Taylor-Maccoll equation combined with the method of characteristics. Employing the geometric relation in the osculating-cone method， the planform-customized waverider design is achieved using the straight-shock internal conical flow fields. The properties of straight-shock flow fields with different boundaries and pressure distributions were compared. Taking the 3D leading edge of one double swept waverider with wing dihedral as the baseline planform shape， the planform-customized waveriders using the internal conical flow fields with different boundaries are designed. Then the effect of the internal flow fields on the waverider performance was analyzed. The results show that the planform-customized waveriders generated from the internal flows with different wall boundaries feature high lift-to-drag ratio. The shock wave positions in their flow fields are nearly identical， indicating promising wave-riding performance. When the wall boundaries of the basic internal flow fields vary from elevated to descent profile along the axial coordinate， the pressure of the lower surface transitions from increasing to decreasing. The compression ability under the lower surface also decreases， but the total pressure recovery coefficients remain similar. In addition， as the wall boundary approaches a straight line more closely， the flow field uniformity under the lower surface of waveriders is better， just like that of the basic internal flow fields.

Key words: waverider, customized planform, straight shock wave, internal conical flow field, wall boundary

CLC Number:

V221.5

Xufei MENG, Peng BAI, Chuanzhen LIU. Influence of internal conical flow field parameters on performance of planform-customized waveriders[J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(1): 632041.

Figures/Tables 21

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Table 1

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Table 4

Compression characteristics at inlet entry area

Shape	$P ¯ / P ∞$	$P ¯ 0 / P 0 ∞$	ε
STRA	1.331 6	0.964 9	0.032 3
UPP1	2.188 9	0.967 0	0.198 3
UPP2	1.610 6	0.967 1	0.128 9
DOWN	1.196 6	0.965 4	0.060 8

Table 4

References 29

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Section	STRA/10^-3	UPP1/10^-3	UPP2/10^-3	DOWN/10^-3
Section 1	5.590	8.375	5.176	9.830
Section 2	1.062	30.022	16.001	15.913
Section 3	1.386	37.240	22.929	24.312

Cells/10⁶	C_L	ΔC_L /%	C_D	ΔC_D/%	L/D
2.46	0.305 8	-0.60	0.110 1	-0.64	2.778 7
4.72	0.306 7	-0.32	0.110 3	-0.40	2.779 7
9.50	0.307 7		0.110 8		2.777 5

Cells/10⁶	C_A	ΔC_A /%	C_N	ΔC_N /%	C_mz	ΔC_mz /%
2.46	0.044 10	-0.70	0.322 00	-0.60	0.225 80	-0.61
4.72	0.044 16	-0.51	0.322 93	-0.33	0.226 44	-0.33
9.50	0.044 40		0.324 00		0.227 20

Influence of internal conical flow field parameters on performance of planform-customized waveriders

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