{"_buckets": {"deposit": "96afb214-593e-41f1-82d6-a9caf4cc2023"}, "_deposit": {"id": "2667", "owners": [], "pid": {"revision_id": 0, "type": "recid", "value": "2667"}, "status": "published"}, "_oai": {"id": "oai:meral.edu.mm:recid/2667", "sets": ["user-uy"]}, "communities": ["ccm", "ccp", "kyauksetu", "ltc", "maas", "miit", "mlmu", "mmu", "mtlu", "mtu", "mub", "mude", "mufl", "pathein", "scu", "suoe", "tcu", "tgu", "tuh", "tum", "ucsm", "ucsmtla", "ucsmub", "ucspathein", "ucstaungoo", "ucsy", "udmm", "udmy", "uit", "um", "um1", "um2", "umkn", "umm", "uphy", "urj", "uvs", "uy", "yau", "ydbu", "ytu", "yude", "yueco", "yufl", "yuoe"], "control_number": "2667", "item_1583103067471": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "Study on the Influence of the Inlet Swirling Flow in a Double and Triple Elbow Using Phased Array UVP", "subitem_1551255648112": "en"}]}, "item_1583103085720": {"attribute_name": "Description", "attribute_value_mlt": [{"interim": "This study presents investigation of flow structure and velocity fluctuation downstream of a compact pipe layout, which make with double and triple elbow. Ultrasonic Velocity Profiler (UVP), Phased Array UVP and PIV systems are used to measure the velocity field downstream of the elbow. The velocity profiles from the experiments were imposed in CFD numerical simulation to visualize the complete flow structure through the pipe. CFD code ANSYS Fluent 16.2 is used for the numerical simulation. In CFD simulation, the turbulent RNG k-ε model is adopted to visualize asymmetric turbulent flow downstream of the double bent pipe. The main objective is to understand the fluid flow structure in a compact piping system. In addition, our laboratory is using Ultrasonic Doppler method for the non-destructive measurement. The aim is to improve the performance of the measurement system and to apply in the flow measurement and flow visualization system in the power plant.\r In the experiment condition, the water flows at Reynolds number Re = 1 × 104 and the water temperature is in the room temperature 25˚C. In case of inlet swirling flow condition, a rotary type swirling generator was used to generate homogenous swirling flow, and the swirl number was set up S = 1. Phased Array UVP is applied for the flow visualization downstream of the double and triple elbow in the condition of swirling inlet flow and without inlet swirling flow. Phased Array UVP can provide a two-dimensional velocity vector of the fluid. The measurement positions are located at x/D = 0, x/D = 0.6, x/D = 1 and x/D = 1.5 downstream of elbow. In two-dimensional velocity of without inlet swirling flow, the flow separation occurs at the edge of inner elbow, and the reattachment point is located at x/D =1.5. Therefore, the reverse flow region is narrow in swirling inlet condition. In the condition of without inlet swirling flow, the axial velocity fluctuation is higher than with inlet swirling flow, but radial velocity fluctuation is lower than inlet swirling flow."}]}, "item_1583103108160": {"attribute_name": "Keywords"}, "item_1583103120197": {"attribute_name": "Files", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "date": [{"dateType": "Available", "dateValue": "2020-05-05"}], "displaytype": "preview", "download_preview_message": "", "file_order": 0, "filename": "thesis_15D51612_San Shwin.pdf", "filesize": [{"value": "6752 Kb"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 6752000.0, "url": {"url": "https://meral.edu.mm/record/2667/files/thesis_15D51612_San Shwin.pdf"}, "version_id": "5757dc75-decb-4e12-a48c-7ff7951d7297"}]}, "item_1583103131163": {"attribute_name": "Journal articles", "attribute_value_mlt": [{}]}, "item_1583103147082": {"attribute_name": "Conference papaers", "attribute_value_mlt": [{}]}, "item_1583103211336": {"attribute_name": "Books/reports/chapters", "attribute_value_mlt": [{}]}, "item_1583103233624": {"attribute_name": "Thesis/dissertations", "attribute_value_mlt": [{"subitem_supervisor(s)": []}]}, "item_1583105942107": {"attribute_name": "Authors", "attribute_value_mlt": [{"subitem_authors": [{"subitem_authors_fullname": "San Shwin"}]}]}, "item_1583108359239": {"attribute_name": "Upload type", "attribute_value_mlt": [{"interim": "Publication"}]}, "item_1583108428133": {"attribute_name": "Publication type", "attribute_value_mlt": [{"interim": "Thesis"}]}, "item_1583159729339": {"attribute_name": "Publication date", "attribute_value": "2018"}, "item_1583159847033": {"attribute_name": "Identifier", "attribute_value": "https://uyr.uy.edu.mm/handle/123456789/611"}, "item_title": "Study on the Influence of the Inlet Swirling Flow in a Double and Triple Elbow Using Phased Array UVP", "item_type_id": "21", "owner": "1", "path": ["1582967549708"], "permalink_uri": "http://hdl.handle.net/20.500.12678/0000002667", "pubdate": {"attribute_name": "Deposited date", "attribute_value": "2020-03-05"}, "publish_date": "2020-03-05", "publish_status": "0", "recid": "2667", "relation": {}, "relation_version_is_last": true, "title": ["Study on the Influence of the Inlet Swirling Flow in a Double and Triple Elbow Using Phased Array UVP"], "weko_shared_id": -1}