TY - JOUR AU - Poledno, Martin AU - Kmoch, Petr AU - Jílek, Adolf PY - 2015/01/25 Y2 - 2024/03/28 TI - Investigation of Airflow in Internal Recirculation Channel of Centrifugal Compressor JF - Advances in Military Technology JA - AiMT VL - 9 IS - 2 SE - Research Paper DO - UR - https://aimt.cz/index.php/aimt/article/view/1046 SP - 61-76 AB - <p><em><span style="left: 127.6px; top: 490.802px; font-size: 16.6px; font-family: serif; transform: scaleX(1.04442);">Contemporary high pressure ratio centrifugal compre</span><span style="left: 518.599px; top: 490.802px; font-size: 16.6px; font-family: serif; transform: scaleX(1.02621);">ssors have a narrow stable </span><span style="left: 127.6px; top: 509.802px; font-size: 16.6px; font-family: serif; transform: scaleX(1.06062);">operating. In order to achieve a wider stable opera</span><span style="left: 516.4px; top: 509.802px; font-size: 16.6px; font-family: serif; transform: scaleX(1.01974);">ting region, some anti-surge </span><span style="left: 127.6px; top: 529.002px; font-size: 16.6px; font-family: serif; transform: scaleX(1.00631);">measures can be used, such as an internal recircula</span><span style="left: 500.2px; top: 529.002px; font-size: 16.6px; font-family: serif; transform: scaleX(0.974116);">tion channel (IRC). This article </span><span style="left: 127.6px; top: 548.202px; font-size: 16.6px; font-family: serif; transform: scaleX(0.963571);">presents a study of the airflow in IRC of a centrif</span><span style="left: 482.2px; top: 548.202px; font-size: 16.6px; font-family: serif; transform: scaleX(0.956314);">ugal compressor. A model of such </span><span style="left: 127.6px; top: 567.402px; font-size: 16.6px; font-family: serif; transform: scaleX(1.03738);">channel was designed and manufactured in order to i</span><span style="left: 491px; top: 567.402px; font-size: 16.6px; font-family: serif; transform: scaleX(0.996563);">nvestigate the influence of various </span><span style="left: 127.6px; top: 586.602px; font-size: 16.6px; font-family: serif; transform: scaleX(1.02212);">IRC inlet slot geometry on air flow parameters. Num</span><span style="left: 487.2px; top: 586.602px; font-size: 16.6px; font-family: serif; transform: scaleX(1.0108);">erical simulation of the airflow for </span><span style="left: 127.6px; top: 605.802px; font-size: 16.6px; font-family: serif; transform: scaleX(0.952569);">selected variants was also performed. Results of th</span><span style="left: 476px; top: 605.802px; font-size: 16.6px; font-family: serif; transform: scaleX(0.934544);">e simulation together with results of </span><span style="left: 127.6px; top: 624.802px; font-size: 16.6px; font-family: serif; transform: scaleX(0.946204);">the experiment enable us to analyse the airflow in </span><span style="left: 476.8px; top: 624.802px; font-size: 16.6px; font-family: serif; transform: scaleX(0.912392);">the area of the inlet slot and to find </span><span style="left: 127.6px; top: 644.002px; font-size: 16.6px; font-family: serif; transform: scaleX(1.00457);">out its most suitable geometry</span></em></p> ER -