Reconstruction of Velocity Distribution in Partially-Filled Pipe Based on Non-Uniform Under-Sampling
المؤلفون المشاركون
Jiang, Yulin
Pu, Qingmin
Ding, Wenbin
المصدر
Advances in Mathematical Physics
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-01-22
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
In the process of research on the flow velocity distribution in a partially filled pipe, the under-sampling of measurement data often occurs.
For the first time, this problem is solved by the improved non-uniform B-spline curve fitting approximation (NBSC) method.
The main innovation of this method is to reconstruct the flow velocity distribution fitting curve with a small amount of non-uniform feature points containing flow velocity information.
First, the curvature of a whole discrete sampled data is analyzed, then the weighted threshold is set, and the sampled points that satisfy the threshold are extracted as the initial velocity distribution feature points.
Next the node vectors were constructed according to the initial feature points, and the initial interpolation fitting curves are generated.
Secondly, by using the relative deviation between the initial approximation curve and each sampled point, new feature points were added where the curve allowable deviation exceeded the specified tolerance, and then a new interpolation fitting curve was obtained.
The above procedure was repeated until the fitting curve reached expected accuracy, thus the appropriate feature points were determined.
Experimental results showed that, in the case of the same approximation deviation, the proposed NBSC method can solve the problem of under-sampling of measurement data better.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Jiang, Yulin& Pu, Qingmin& Ding, Wenbin. 2020. Reconstruction of Velocity Distribution in Partially-Filled Pipe Based on Non-Uniform Under-Sampling. Advances in Mathematical Physics،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1127475
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Jiang, Yulin…[et al.]. Reconstruction of Velocity Distribution in Partially-Filled Pipe Based on Non-Uniform Under-Sampling. Advances in Mathematical Physics No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1127475
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Jiang, Yulin& Pu, Qingmin& Ding, Wenbin. Reconstruction of Velocity Distribution in Partially-Filled Pipe Based on Non-Uniform Under-Sampling. Advances in Mathematical Physics. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1127475
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1127475
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر