Receptivity of the Boundary Layer over a Blunt Wedge with Distributed Roughness at Mach 6

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"></td><td class="align_center">Smooth wall</td><td class="align_center">Isolated roughness</td><td class="align_center">Distributed roughness</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left"><span style="width: 36.8837ptpx;"><svg height="17.3161pt" id="M60" style="vertical-align:-5.528899pt" version="1.1" viewbox="-0.0498162 -11.7872 36.8837 17.3161" width="36.8837pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,.007)"><path d="M480 853C480 879 456 900 424 900C303 900 237 760 239 491L245 -163C246 -299 234 -327 208 -327C187 -327 171 -289 137 -289C112 -289 90 -309 90 -335C90 -363 116 -389 155 -389C277 -389 342 -245 338 99L332 673C330 820 346 844 370 844C396 844 396 808 432 808C460 808 480 826 480 853Z" 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class="align_center">0.05488</td><td class="align_center">0.05249</td><td class="align_center">0.04639</td></tr><tr><td class="align_left"><span style="width: 38.3451ptpx;"><svg height="17.3161pt" id="M61" style="vertical-align:-5.528899pt" version="1.1" viewbox="-0.0498162 -11.7872 38.3451 17.3161" width="38.3451pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,.007)"><path d="M480 853C480 879 456 900 424 900C303 900 237 760 239 491L245 -163C246 -299 234 -327 208 -327C187 -327 171 -289 137 -289C112 -289 90 -309 90 -335C90 -363 116 -389 155 -389C277 -389 342 -245 338 99L332 673C330 820 346 844 370 844C396 844 396 808 432 808C460 808 480 826 480 853Z" id="g119-81"></path></g><g transform="matrix(.013,0,0,-0.013,9.617,0)"><path d="M828 650H570L564 622C646 614 650 609 634 524L604 366H253L281 524C296 608 308 615 382 622L388 650H132L126 622C211 615 214 609 198 524L121 122C106 42 102 35 23 28L17 0H276L282 28C196 35 191 40 206 122L243 324H597L559 123C544 42 537 35 452 28L446 0H710L716 28C632 35 628 43 643 122L719 524C735 610 741 615 822 622L828 650Z" id="g113-73"></path></g><g transform="matrix(.0091,0,0,-0.0091,19.692,3.132)"><path d="M620 667C620 684 593 710 552 710C515 710 459 687 409 634C360 582 334 506 320 433H247L215 400L220 388H310L259 80C224 -129 199 -161 185 -174C175 -183 160 -192 141 -192C123 -192 90 -181 75 -165C69 -158 64 -156 54 -164C39 -178 24 -195 24 -208C24 -231 61 -257 94 -257C124 -257 162 -243 209 -194C267 -134 303 -66 343 107C369 220 378 279 393 385L503 397L523 433H404C432 619 464 660 500 660C522 660 542 646 566 621C573 614 583 615 593 621C603 628 620 648 620 667Z" id="g50-103"></path></g><g transform="matrix(.013,0,0,-0.013,26.072,0)"><path d="M530 686C535 705 530 712 521 712C504 712 448 684 359 674L358 648H393C437 648 439 646 429 593L400 435C372 447 345 448 332 448C286 448 194 414 144 373C68 311 23 203 23 111C23 26 57 -12 91 -12C120 -12 147 3 188 29C227 54 290 102 341 170H343L322 71C308 6 320 -12 341 -12C373 -12 442 27 501 96L485 120C455 91 422 67 408 67C401 67 401 76 404 91C440 294 479 473 530 686ZM387 375L355 241C326 187 200 53 142 53C126 53 109 73 109 130C109 217 154 337 218 381C240 396 265 404 297 404S372 390 387 375Z" id="g113-101"></path></g><g transform="matrix(.013,0,0,-0.013,33.288,0)"><path d="M352 391C352 416 319 448 267 448C236 448 173 423 147 400C107 364 96 332 96 304C96 248 143 210 193 181C241 153 258 124 258 100C258 72 232 38 184 38C151 38 107 66 81 108C77 114 64 116 55 111C34 99 23 84 23 65C23 29 81 -12 134 -12C220 -12 325 61 325 141C325 184 297 215 234 256C194 282 161 309 161 346C161 380 188 401 217 401C255 401 279 380 301 353C308 344 313 341 325 347C341 355 352 371 352 391Z" id="g113-116"></path></g></svg></span></td><td class="align_center">0.01822</td><td class="align_center">0.01817</td><td class="align_center">0.01771</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Integral value of friction coefficient and heat flux along the wall.</div>

International Journal of Aerospace Engineering

tab2

Table 2

Table 2: Receptivity of the Boundary Layer over a Blunt Wedge with Distributed Roughness at Mach 6 