Transition Process from Diffuser Stall to Stage Stall in a Centrifugal Compressor with a Vaned Diffuser

<div>Casing static pressure fluctuations at diffuser inlet from nondimensional time <svg height="10.3089pt" id="M25" style="vertical-align:-0.2063999pt" version="1.1" viewbox="-0.0498162 -10.1025 41.0535 10.3089" width="41.0535pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M324 430H196L233 583L223 592L145 529L120 430H54L29 396L31 388H111L56 126C33 15 54 -12 77 -12C137 -12 214 57 250 95L233 119C208 92 155 59 138 59C126 59 120 70 131 125L186 390L298 394L324 430Z" id="g113-117"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="341" vert-adv-y="341"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,4.433,-5.741)"><path d="M486 158C486 177 478 202 466 220C413 228 386 236 336 262C386 288 413 297 466 304C478 323 486 347 485 366C470 376 444 381 422 380C389 338 368 319 321 288C323 345 329 372 349 422C339 442 322 461 305 470C289 461 271 442 262 422C281 372 287 345 290 288C243 319 222 338 189 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International Journal of Rotating Machinery

fig7

Figure 7

Figure 7: Transition Process from Diffuser Stall to Stage Stall in a Centrifugal Compressor with a Vaned Diffuser 