Numerical simulation is a widely used tool for Coriolis flowmeter (CFM) operation analysis. However, there is a lack of experimentally validated methodologies for the CFM simulation. Moreover, there is no consensus on suitable turbulence models and configuration simplifications. The present study intends to address these questions in a framework of a fluid-solid interaction simulation methodology by coupling the finite volume method and finite element method for fluid and solid domains, respectively. The Reynolds stresses (RSM) and eddy viscosity-based turbulence models are explored and compared for CFM simulations. The effects of different configuration simplifications are investigated. It is demonstrated that the RSM model is favorable for the CFM operation simulations. It is also shown that the configuration simplifications should not include the braces neglect or the equivalent flowmeter tube length assumption. The simulation results are validated by earlier experimental data, showing a less than 5% discrepancy. The proposed methodology will increase the confidence in CFM operation simulations and consequently provide the foundation for further studies of flowmeter usage in various fields.
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http://dx.doi.org/10.3390/s21238105 | DOI Listing |
J Stomatol Oral Maxillofac Surg
January 2025
Department of Maxillofacial Surgery, Plastic Surgery Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College. No. 33, Ba-Da-Chu Rd, Shi Jing Shan District, Beijing 100144, China. Electronic address:
Objective: This systematic review and meta-analysis aimed to determine the optimal timing for mandibular distraction osteogenesis in children with craniofacial microsomia based on long-term outcomes and relapse rates.
Methods: A comprehensive search of PubMed, Embase, Cochrane Library, and Web of Science was conducted for studies published up to September 2024. Eligible studies included children aged ≤16 years with CFM who underwent MDO, with follow-up duration exceeding one year.
Clin Ophthalmol
January 2025
Department of Ophthalmology, Tong Ren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
Purpose: The aim of this study was to identify metabolic biomarkers and investigate the metabolic changes associated with aqueous humor in retinal vein occlusion macular edema (RVO-ME).
Methods: Aqueous humor (AH) samples were collected from patients, including those diagnosed with central retinal vein occlusion macular edema (CRVO-ME), branch retinal vein occlusion macular edema (BRVO-ME), and a control group undergoing cataract surgery. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was utilized to analyze the metabolomic profiles in aqueous humor.
Lung
January 2025
Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita, Japan.
Drug Des Devel Ther
December 2024
Department of Anaesthesiology, Peking University People's Hospital, Peking, People's Republic of China.
Background: The 15° left tilt position during caesarean delivery has been recommended by guidelines for many years, but recent studies have questioned the clinical benefit of left tilt position. We hypothesize that using a higher starting dose of metaraminol in the supine position will result in a non-inferior umbilical arterial pH, compared to the 15° left tilt position.
Methods: Healthy women undergoing elective caesarean delivery were randomized to the supine position (n = 62) or 15° left tilt position (n = 62) after spinal anaesthesia (0.
JBRA Assist Reprod
December 2024
Christus University Center (Unichristus), Fortaleza, CE, Brazil.
Due to its documented records and technological achievements, in vitro embryo creation technology is still honored worldwide forty years after Louise Brown's birth on July 25, 1978. The World Health Organization (WHO) reports that one in six people globally who are of reproductive age may have infertility at some point in their lives. In this environment, it has become noteworthy for couples or patients to want to become pregnant through operations carried out by Assisted Human Reproduction Centers (AHRCs).
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