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All Journal Medula ICON-CSE
Prasetyo Edi
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Computer Science & IT Education Engineering Medicine & Pharmacology Neuroscience Public Health

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The Simulation and Design of High Subsonic Wing Aircraft Prasetyo Edi
ICON-CSE Vol 1, No 1 (2014)
Publisher : ICON-CSE

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Abstract

This paper intends to present the application of Computational Fluid Dynamic (CFD) on the simulation and design of high subsonic wing of transport aircraft. The computation was performed using RAMPANT, an unstructured, multigrid flow solver. A 2-D and 3-D model of the wing was created using CATIA (2D and 3D modeling). A corresponding grid was created using preBFC and TGrid. The paper describes the technique of creating the grid and using the CFD on the wing design process. It then discusses the benefits and penalties of using the above tools. Description is then given in using the aerodynamic analysis result to optimize the wing. It concludes with a discussion of the results and recommendations for future work.
Ruptured Pseudoaneurysm of a Brachiocephalic Arteriovenous Fistula: A Case Report Jeffrey Surya; Prasetyo Edi
Medula Vol 16 No 1 (2026): Medula
Publisher : CV. Jasa Sukses Abadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53089/medula.v16i1.1881

Abstract

Pseudoaneurysm is a vascular abnormality caused by disruption of the arterial wall, resulting in the extraluminal accumulation of blood within a sac-like cavity. This condition may arise from infection, inflammation, trauma, or iatrogenic causes that may progressively enlarge, compress surrounding neurovascular structures, and eventually rupture, leading to active bleeding. Hemorrhage from an arteriovenous fistula is an uncommon but potentially life-threatening emergency. Therefore, prompt surgical management is essential to prevent limb ischemia and reduce mortality. We report the case of a 32-year-old man who presented with acute bleeding, swelling, and pulsatile pain in the left arm two hours prior to admission. The limb had undergone brachiocephalic arteriovenous fistula creation two weeks earlier. Physical examination revealed swelling, purulent discharge, and blood clots at the surgical site, consistent with a ruptured pseudoaneurysm. Initial management in the emergency department included direct compression, intravenous fluid resuscitation, and antifibrinolytic therapy. The patient subsequently underwent emergency vascular reconstruction. Intraoperative findings showed complete rupture of the cephalic vein, which was not salvageable. The brachial artery, however, had a subtotal rupture and was preserved. A side-to-side vein patch plasty using the great saphenous vein was performed. The patient demonstrated clinical improvement postoperatively and was discharged after three days. At the two-week follow-up, no complications were noted, particularly signs of distal limb ischemia.
Co-Authors Jeffrey Surya