Sole Source Justification_Redacted.pdf

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Attached to
Fidelity CFD License Renewals Federal contract opportunity
Solicitation number
N0016725Q1114
Issued by
Department of the Navy Naval Sea Systems Command

About this file

This document is a Non-Competitive Procurement Justification Memorandum for the Naval Surface Warfare Center, Carderock Division (NSWCCD) to purchase maintenance renewals for Cadence Fidelity CDF software (formerly HEXPRESS). The procurement is for a one-year floating license covering two licenses, with a performance period from July 31, 2025 through August 31, 2026 and options for two additional years. The total estimated cost for three years is redacted, and the software will be acquired directly from Cadence Design Systems Inc., the sole U.S. distributor.

The justification for sole-source procurement is based on the software's unique capabilities for computational fluid dynamics (CFD), including NavyFOAM compatibility, marine-optimized meshing, specialized octree-based hex-dominant meshing technology, and features like automated workflow and adaptive refinement. The document cites exclusive licensing agreements following Cadence's acquisition of HEXPRESS from Numeca U.S.A., Inc., and emphasizes that the software is critical for generating high-quality meshes for marine applications and naval simulations, with no comparable alternatives available in the market.

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NSWCCD SAP Non-Competitive Procurement Justification Memo Effective April 2025

MEMORANDUM FOR FILE

FROM:

CODE: 1044

TO: Code 02

DATE: 06/10/2025

SUBJECT: Non-Competitive Procurement Justification Memo for Actions Under SAT

I. BACKGROUND

1. FAR 13.106-1(b)(1)(i) states for purchases not exceeding the simplified acquisition threshold, Contracting Officers may solicit from one source if the Contracting Officer determines that the circumstances of the contract action deem only one source reasonably available.

2. FAR 8.405-6 allows for limiting sources for orders or BPAs under Federal Supply Schedules under certain circumstances or for items peculiar to one manufacturer

3. As required by FAR 13.106-3(b)(3)(i), FAR 8.405-6(a)(1), or FAR 8.405-6(b)(2), this memorandum explains the absence of competition for this acquisition, as only one source will be solicited for this requirement (or for a portion of the requirement) and the requirement is not expected to exceed the simplified acquisition threshold.

II. DESCRIPTION OF ITEM OR SERVICE (Include manufacture/sole source name and address.)

NSWCCD Code 1044 is requesting to purchase the maintenance renewal for Cadence Fidelity CDF, formally known as HEXPRESS software. This service is for existing software that has been in use by engineers at NSWCCD for more than 10 years. The period of performance of this maintenance support is from July, 31 2025 through August 31, 2026 with additional request for 2 option years. The previous contract number for this requirement is: N0016721P0137

The requested purchase order (PO) covers a one-year floating license for base year, with the cost of for two licenses. The cost for three option years are as follows:

1.1) Renewal 2026-2027 - 1.2) Renewal 2027-2028 -

Estimated Total for 3 years:

MANUFACTURER: Cadence Design Systems Inc.

ADDRESS: 2655 Seely Avenue, Bldg. 5 San Jose, CA 95134

PHONE: 817-720-1414

POC: tcarriga@cadence.com

III. BASIS FOR DETERMINATION FOR USE OF OTHER THAN FULL & OPEN COMPETITION

B. SOLE SOURCE. (select all that apply)

Fidelity CDF is an automated, hex-dominant grid generation tool for Computational Fluid Dynamics (CFD). It creates high-quality, body-fitted, unstructured meshes composed entirely of hexahedral elements, even for complex geometries. The software automatically refines the mesh using a nested (octree) approach and generates a non-conformal grid ready for use with CFD solvers like NavyFOAM/OpenFOAM and FLUENT.

2. Exclusive Licensing Agreements. The item or service is only available from the Original Equipment Manufacturer (OEM), or there is only one authorized distributor or technical representative for the OEM.

Numeca U.S.A., Inc. was the exclusive U.S. distributor and manufacturer of the HEXPRESS software. Following the acquisition of HEXPRESS technology by Cadence Design Systems, the software has been rebranded and is now known as Cadence Fidelity CDF. This transition reflects a change in ownership and branding, but the core functionality remains focused on high-quality mesh generation for CFD. Cadence Design Systems is now the sole US distributor.

3. Other Reasons.

4. Federal Supply Schedules (FSS): IAW FAR 8.405-6(a)(1)

a. An urgent and compelling need exists, and following the procedures would result in unacceptable delays;

b. Only one source is capable of providing the supplies or services required at the level of quality required because the supplies or services are unique or highly specialized; or

c. In the interest of economy and efficiency, the new work is a logical follow-on to an original Federal Supply Schedule order provided that the original order was placed in accordance with the applicable Federal Supply Schedule ordering procedures. The original order or BPA must not have been previously issued under sole-source or limited-sources procedures.

Our experience shows that hexahedral-dominant meshes provide superior solution quality in CFD simulations.

HEXPRESS is well-suited to our needs for generating such meshes, particularly with our NavyFOAM solver and for marine applications. Its key attributes, critical for our grid generation requirements, include:

NavyFOAM Compatibility: HEXPRESS offers Python scripting and multi-CPU support to seamlessly integrate with NavyFOAM (DOD HPC CREATE Program).

Marine-Optimized: Specifically developed for gridding ship geometries.

Unique Meshing Technology: Employs an octree-based technology for hex-dominant meshing, unavailable in other commercial packages.

Automated Workflow: Fully automated, reducing manpower and costs.

Adaptive Refinement: Hanging node refinement for improved accuracy without excessive cell counts.

Wave Capture: Anisotropic meshing along the free surface to accurately capture bow and side waves.

IV. CERTIFICATIONS & APPROVALS

A. Technical/Requirements Certification: I certify that the facts and representation under my cognizance, which are included in this justification, are complete and accurate to the best of my knowledge and belief.

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